DIY Paper Yield & Tensile Strengths

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SUMMARY

This discussion centers on the yield and tensile strengths of various paper types, specifically for experiments involving rotating boundary layers. Users sought specific data on common papers such as printer paper and kraft paper but struggled to find comprehensive resources. The conversation highlights the importance of bursting strength, which is crucial for applications involving tension in paper, such as printing. Key metrics discussed include bursting strength values for different paper grades, measured according to TAPPI T 403 standards.

PREREQUISITES
  • Understanding of paper properties, including yield and tensile strength
  • Familiarity with TAPPI T 403 standards for paper testing
  • Knowledge of bursting strength and its significance in material science
  • Basic concepts of rotating boundary layers in experimental setups
NEXT STEPS
  • Research the bursting strength of various paper grades using TAPPI T 403
  • Explore the effects of paper grain on tensile strength in experimental applications
  • Investigate the mechanical properties of different paper types for engineering purposes
  • Learn about the design and setup of experiments involving rotating boundary layers
USEFUL FOR

Researchers, material scientists, and engineers involved in paper manufacturing or testing, as well as anyone conducting experiments that require precise knowledge of paper properties.

blainiac
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Hey there!

I'm about to do some tests with rotating boundary layers and wanted to use rotating sheets of paper (cut into circles) as this would be ideal for my experiments.

I was researching various materials but couldn't find yield and tensile strengths for different types of paper (printer paper, kraft paper, etc.). Is there documentation of the yield and UTS of common papers?

Thank you so much!
 
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Bystander,

I definitely have done my due diligence search-wise, even exact phrase matches like you've provided. Either it returns a paper written on the subject (instead of actual PAPER as the material). I have also looked at several videos but to no avail. I hope I haven't overlooked what I'm searching for due to sleepiness, but I'm sure there's a simple materials sheet but I can't find anything. Thanks for any help!

Edit: I found what I needed FINALLY, I'll post it soon if others are interested.
 
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blainiac said:
Edit: I found what I needed FINALLY, I'll post it soon if others are interested.
Please do, and tell us more about your project, if you can.
 
Well the information has to be out there someplace.
Papers comes in rolls from newsprint to fine paper.
Rolling it up and unrolling for printing would involve some tension, and the machine operators would need to know how much before the papers tears or rips.
 
From this link:

Strength Properties

Bursting Strength
Bursting strength tells how much pressure paper can tolerate before rupture. It is important for bag paper.
Bursting strength is measured as the maximum hydrostatic pressure required to rupture the sample by constantly increasing the pressure applied through a rubber diaphragm on 1.20 - inch diameter (30.5 mm) sample. The standards procedure is described in TAPPI T 403.

Bursting strength depends on basis weight of paper. To normalized the bursting strength for various paper, bursting strength is reported as

Burst Index = Bursting Strength (kPa)/ Grammage (g/m2) or

Burst Factor = Bursting Strength ( g/cm2)/ Grammage (g/m2) or

Burst Ratio = Bursting Strength ( lb/inch2)/ Basis Weight (lbs/ream)Typical Bursting Strength Values (Grade) KPa
Coated Paper (130 g/m2) 200-300
Coated Paper (250 g/m2) 300-650
Bond Office/Business Paper (100 g/m2) 250-300
Carbonless Paper (50-60 g/m2) 150-200
Bleached Kraft (60 g/m2) 210-260
Test Liner (186 g/m2)250-475
Not really all you'd want, though.
 
blainiac said:
I'm about to do some tests with rotating boundary layers and wanted to use rotating sheets of paper (cut into circles) as this would be ideal for my experiments.
Many papers have a definite "grain" to them. Will that be a problem in your experiments?
 

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